package com.daeucna.board.config;
 
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScan.Filter;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;
import org.springframework.http.MediaType;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.http.converter.xml.MarshallingHttpMessageConverter;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import org.springframework.web.servlet.config.annotation.ContentNegotiationConfigurer;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import com.daeucna.board.interceptor.BaseInterceptor;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule;

@ComponentScan(
		basePackages = "com.daeucna", 
		useDefaultFilters = false,
		includeFilters = {
		    @Filter(
		        type = FilterType.REGEX,
		        pattern = {".*Controller.*"}
		    )
		}
	)
@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
     	
    @Value("${spring.webservice.intro}")
    private String introPage;
    
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new BaseInterceptor())
                .addPathPatterns("/**")
                .excludePathPatterns("/sample/**");
    }
    
    @Bean
    public MappingJackson2HttpMessageConverter mappingJacksonHttpMessageConverter() {
 
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        
        ObjectMapper objectMapper = converter.getObjectMapper();
        objectMapper.configure(DeserializationFeature.UNWRAP_ROOT_VALUE, true);
        objectMapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
 
        JaxbAnnotationModule module = new JaxbAnnotationModule();
        objectMapper.registerModule(module);
 
        return converter;
    }
    
    @Bean
    public MarshallingHttpMessageConverter marshallingHttpMessageConverter() {
        MarshallingHttpMessageConverter converter = new MarshallingHttpMessageConverter();
        converter.setMarshaller(jaxb2Marshaller());
        converter.setUnmarshaller(jaxb2Marshaller());
        return converter;
    }
    
    @Bean
    public Jaxb2Marshaller jaxb2Marshaller() {
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setPackagesToScan(new String[] { "com.daeucna.board.security.domain", "com.daeucna.board.domain" });
        return marshaller;
    }
    
    @Override
    public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
        configurer.favorParameter(true)
                  .ignoreAcceptHeader(false)
                  .defaultContentType(MediaType.APPLICATION_JSON)
                  .mediaType("json", MediaType.APPLICATION_JSON)
                  .mediaType("xml", MediaType.APPLICATION_XML);
    }
    
    //jsp엔진 추가시 thymeleaf엔진은 제외해야함
    /*
	@Override
	public void configureViewResolvers(ViewResolverRegistry registry) {
		registry.jsp("/jsp/", ".jsp");		
	} 
	*/  

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        // 루트 (/) 로 접근 시 introPage로 이동하는 매핑 추가
        registry.addRedirectViewController("/", introPage);
    }    
}